GIS Data
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Map showing ground failures from the Greenville/Mount Diablo earthquake sequence of January 1980, Northern California Map showing ground failures from the Greenville/Mount Diablo earthquake sequence of January 1980, Northern California
The Greenville/Mt. Diablo earthquake sequence of January 24-26, 1980, was composed of Small and moderate earthquakes; the two largest shocks, on January 24 and 26, were of magnitudes (M) 5.5 and 5.6, respectively (Bolt and others, 1981). A 5.5 event is at the lower end of the range of earthquake magnitudes which cause observable ground failure (Youd and Perkins, 1978; Keefer, 1984)...
Map showing mines, prospects, and mineral sites in the Ellicott Rock Wilderness and additions, South Carolina, North Carolina, and Georgia Map showing mines, prospects, and mineral sites in the Ellicott Rock Wilderness and additions, South Carolina, North Carolina, and Georgia
The Ellicott Rock Wilderness and additions were investigated for mineral resources by the U.S. Bureau of Mines (USBM) in the fall of 1978 and the fall of 1979; the U.S. Geological Survey (USGS) mapped the geology in 1978 and 1979 (Bell and Luce, 1983) and assessed the mineral resource potential of the study area (Luce and others, 1983).